Whilst those might not be particularly secure processes, it's not a "scam", and this is why people need to be less casual with their language online.Thing is there seems to be a lot of these "scammy" solicitors around who really do FA and have dubious business practices.
One a friend used when buying a house a few years back was storing credit card information, unencrypted in plain text files and emails. He worked for the government at the time, pushed the details to the right people and took them to the cleaners lol. I think they ended up closing down.